Hyskeir lies in the southern entrance to The Minch, six miles south-west of the island of Canna and nine miles west of Rum. Garbh Sgeir is a rock that lies next to the islet and the landing place for Hyskeir lies in the channel between the two. Both islands are unoccupied.
Òigh-sgeir is composed of hexagonal Pitchstone columns.
The owner of the island in the 19th and early 20th centuries was Philip Ollas. At that time sheep from Canna were brought to make use of the summer grazing.
Hyskeir is from the Old Norse sker meaning skerry. Òigh-sgeir is Gaelic for 'maiden' or 'virgin rock', sgeir also meaning skerry. The English name 'Maiden Rock' has also been used.
Hyskeir Lighthouse was established in 1904. The 128-foot-high building marks the southern end of the Minch, warning of the presence of the Mills Rocks, the island of Canna and Hyskeir itself. It was designed by David and Charles Stevenson and constructed by Oban contractor Messrs D & J MacDougall. The white tower was manned until March 1997, becoming one of the last lighthouses in Scotland to be automated. The keepers were briefly known for their one-hole golf course following their appearance on TV.
Hyskeir and its lighthouse feature extensively in Peter Hill's book Stargazing: Memoirs of a Young Lighthouse Keeper.
Gavin Maxwell, who fished for basking sharks nearby in 1947, recorded a mass sighting of basking sharks. “It was a gigantic shoal ... at one moment we counted 54 dorsal fins in sight at the same time.”
The island has nesting sites for Arctic and common tern, kittiwakes and eider ducks and also has a large seal colony.
| ("Wikimedia Commons" has material|
- "Hyskeir". Gazetteer for Scotland. http://www.scottish-places.info/features/featurefirst1625.html. Retrieved 15 September 2009.
- al.], C.H. Emeleus ; contributors: J.D. Hudson ... [et (1997). Geology of Rum and the adjacent islands : memoir for 1:50 000 geological sheet 60 (Scotland) (1. publ. ed.). London: Stationery Office. ISBN 0118845179.
- Maxwell, Gavin (1952). Harpoon at a Venture. quoted in "Studying Basking Sharks in Scotland: Research Diary". IFAW. http://www.ifaw.org/ifaw_united_kingdom/join_campaigns/protecting_whales_around_the_world/come_aboard_the_song_of_the_whale/previous_research_journeys/shortcut_of_studying_basking_sharks_in_scotland_research_diary.php. Retrieved 2 November 2007.
- Murray, W.H. (1966) The Hebrides. London. Heinemann.
- Location map: 56°58’15"N, 6°40’35"W